Plus-Minus in field by button

<div class="quantity">
    <span class="bminus"></span>
    <input type="number" name="count" value="1" min="1" required >
    <span class="bplus"></span>
</div>


<script>

  /* quantity count plus/minus
  ------------------------------------------------------*/
  $('.bminus').on('click',function () {
      var $input = $(this).parent().find('input');
      var val = +$input[0].defaultValue;
      var count = parseInt($input.val()) - 1;
      count = count < 1 ? 1 : count; 
      $input.val(count);
      $input.change();
      return false;
  });


  $('.bplus').on('click',function () {
      var $input = $(this).parent().find('input');
      var val = +$input[0].defaultValue; 
      $input.val(parseInt($input.val()) + 1);
      $input.change();
      return false;
  });   

</script>